Extreme Heat and Excessive Rainfall Today

Dangerous and extreme heat will remain across portions of the southern U.S. this week. A heat wave over the Southwest U.S. will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Multiple rounds of thunderstorms will produce heavy to excessive rainfall with significant flash flooding across portions of southern New England today. Read More >

Hazardous Weather Conditions

Current conditions at

Kansas City - Lee's Summit Regional Airport (KLXT)

Lat: 38.96°NLon: 94.37°WElev: 1004ft.

A Few Clouds

83°F

28°C

Humidity 82%
Wind Speed E 7 mph
Barometer 29.96 in (1013.4 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 29 Jul 12:53 pm CDT
Extended Forecast for

Grain Valley MO

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 89. Heat index values as high as 99. East wind around 7 mph.

    High: 89 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 71. East wind 5 to 7 mph.

    Low: 71 °F

    Mostly Cloudy

  • Thursday

    Thursday: A slight chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 88. Southeast wind 5 to 7 mph.  Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of thunderstorms before 7pm, then showers and possibly a thunderstorm after 1am.  Low around 72. Southeast wind around 7 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 72 °F

    Chance
    T-storms then
    Showers

  • Friday

    Friday: A chance of showers and thunderstorms before 1pm.  Mostly sunny, with a high near 89. South southeast wind 9 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 89. Heat index values as high as 99. East wind around 7 mph.
Tonight
Mostly cloudy, with a low around 71. East wind 5 to 7 mph.
Thursday
A slight chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 88. Southeast wind 5 to 7 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of thunderstorms before 7pm, then showers and possibly a thunderstorm after 1am. Low around 72. Southeast wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Friday
A chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 89. South southeast wind 9 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Partly cloudy, with a low around 67.
Saturday
Sunny, with a high near 82.
Saturday Night
Mostly clear, with a low around 65.
Sunday
Sunny, with a high near 85.
Sunday Night
Clear, with a low around 65.
Monday
Sunny, with a high near 87.
Monday Night
Clear, with a low around 67.
Tuesday
Sunny, with a high near 90.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Grain Valley MO
 39.02°N 94.17°W (Elev. 892 ft)
12:17 pm CDT Jul 29, 2026
1pm CDT Jul 29, 2026-6pm CDT Aug 4, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database